Variant 4-83429625-A-G details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_133636.5(HELQ):c.2417T>C(p.Leu806Pro) variant causes a missense change. The variant allele was found at a frequency of 0.0000391 in 1,612,306 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000038 ( 0 hom. )

Consequence

HELQ
NM_133636.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.69

Variant links:

Genes affected

HELQ (HGNC:18536): (helicase, POLQ like) HEL308 is a single-stranded DNA-dependent ATPase and DNA helicase (Marini and Wood, 2002 [PubMed 11751861]).[supplied by OMIM, Mar 2008]

HELQ links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.969

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
HELQ	NM_133636.5 linkuse as main transcript	c.2417T>C	p.Leu806Pro	missense_variant	12/18	ENST00000295488.8
HELQ	NM_001297755.2 linkuse as main transcript	c.2216T>C	p.Leu739Pro	missense_variant	11/17
HELQ	NM_001297756.2 linkuse as main transcript	c.926T>C	p.Leu309Pro	missense_variant	12/18
HELQ	NM_001297757.2 linkuse as main transcript	c.785T>C	p.Leu262Pro	missense_variant	11/17

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
HELQ	ENST00000295488.8 linkuse as main transcript	c.2417T>C	p.Leu806Pro	missense_variant	12/18	1	NM_133636.5	P1	Q8TDG4-1
HELQ	ENST00000510985.1 linkuse as main transcript	c.2216T>C	p.Leu739Pro	missense_variant	11/17	1
HELQ	ENST00000508591.5 linkuse as main transcript	c.*849T>C		3_prime_UTR_variant, NMD_transcript_variant	11/17	1

Frequencies

GnomAD3 genomes

AF:

0.0000460

AC:

AN:

152144

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000239

AC:

AN:

250934

Hom.:

AF XY:

0.0000295

AC XY:

AN XY:

135644

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000529

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000384

AC:

AN:

1460162

Hom.:

Cov.:

AF XY:

0.0000385

AC XY:

AN XY:

726506

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000504

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000460

AC:

AN:

152144

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74336

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000103

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000675

Hom.:

Bravo

AF:

0.0000378

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.0000165

AC:

EpiCase

AF:

0.000164

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Dec 27, 2023

The c.2417T>C (p.L806P) alteration is located in exon 12 (coding exon 12) of the HELQ gene. This alteration results from a T to C substitution at nucleotide position 2417, causing the leucine (L) at amino acid position 806 to be replaced by a proline (P). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.98

BayesDel_addAF

Pathogenic

0.25

BayesDel_noAF

Pathogenic

0.27

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Benign

0.37

T;T

Eigen

Uncertain

0.63

Eigen_PC

Uncertain

0.52

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Benign

0.84

T;T

M_CAP

Uncertain

0.27

MetaRNN

Pathogenic

0.97

D;D

MetaSVM

Uncertain

0.18

MutationAssessor

Pathogenic

3.0

M;.

MutationTaster

Benign

1.0

D;D

PrimateAI

Uncertain

0.58

PROVEAN

Pathogenic

-5.2

D;D

REVEL

Pathogenic

0.79

Sift

Uncertain

0.015

D;D

Sift4G

Uncertain

0.043

D;D

Polyphen

1.0

D;D

Vest4

0.96

MVP

0.88

MPC

0.67

ClinPred

0.91

GERP RS

5.4

Varity_R

0.92

gMVP

0.95

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over